I've recently migrated to a new PC and copied over my pst file, and I think I imported my address book. (A bit of blind navigation, unfortunately.) No I seem to have 2 contacts list, one being empty and the other full, and 2 complete sets of mail messages. These appear to work in parallel because when I download mail, it appears in both inboxes.
Can you please tell me how to get rid of one set without losing my contacts?